This is tent by tav from http://github.com/tav/scripts/blob/master/tentbot.py

Top matter

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Python - Here's the setup:

#! /usr/bin/env python
 
"""Tent IRC Bot."""
 
# External Dependency: easy_install simplejson
# External Dependency: easy_install eventlet
 
import simplejson
import traceback
 
from posixpath import split as split_path
from pprint import pprint
from Queue import Queue
from thread import allocate_lock, start_new_thread
from urllib import urlencode
 
from eventlet.pool import Pool as CoroutinePool
from eventlet.green.urllib2 import urlopen
 
from tentconfig import *
 
# ------------------------------------------------------------------------------
# httpserver.py from http://code.activestate.com/recipes/259148/
# ------------------------------------------------------------------------------
 
import asynchat, asyncore, socket, SimpleHTTPServer, select, urllib
import posixpath, sys, cgi, cStringIO, os, traceback, shutil

So we see that tent is some sort of IRC bot Bots written in python

Setting up classes

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Hmmm. classes..


class CI_dict(dict)

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class CI_dict(dict):
    """Dictionary with case-insensitive keys
Replacement for the deprecated mimetools.Message class
"""
 
    def __init__(self, infile, *args):
        self._ci_dict = {}
        for line in infile:
            k,v=line.split(":",1)
            self._ci_dict[k.lower()] = self[k] = v.strip()
        self.headers = self.keys()
    
    def getheader(self,key,default=""):
        return self._ci_dict.get(key.lower(),default)
    
    def get(self,key,default=""):
        return self._ci_dict.get(key.lower(),default)
    
    def __getitem__(self,key):
        return self._ci_dict[key.lower()]
    
    def __contains__(self,key):
        return key.lower() in self._ci_dict

class socketStream

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class socketStream:
 
    def __init__(self,sock):
        """Initiate a socket (non-blocking) and a buffer"""
        self.sock = sock
        self.buffer = cStringIO.StringIO()
        self.closed = 1 # compatibility with SocketServer
    
    def write(self, data):
        """Buffer the input, then send as many bytes as possible"""
        self.buffer.write(data)
        if self.writable():
            buff = self.buffer.getvalue()
            # next try/except clause suggested by Robert Brown
            try:
                    sent = self.sock.send(buff)
            except:
                    # Catch socket exceptions and abort
                    # writing the buffer
                    sent = len(data)
 
            # reset the buffer to the data that has not yet be sent
            self.buffer=cStringIO.StringIO()
            self.buffer.write(buff[sent:])
            
    def finish(self):
        """When all data has been received, send what remains
in the buffer"""
        data = self.buffer.getvalue()
        # send data
        while len(data):
            while not self.writable():
                pass
            sent = self.sock.send(data)
            data = data[sent:]
 
    def writable(self):
        """Used as a flag to know if something can be sent to the socket"""
        return select.select([],[self.sock],[])[1]

class RequestHandler

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class RequestHandler(asynchat.async_chat, SimpleHTTPServer.SimpleHTTPRequestHandler):
 
    protocol_version = "HTTP/1.1"
    MessageClass = CI_dict
 
    def __init__(self,conn,addr,server):
        asynchat.async_chat.__init__(self,conn)
        self.client_address = addr
        self.connection = conn
        self.server = server
        # set the terminator : when it is received, this means that the
        # http request is complete ; control will be passed to
        # self.found_terminator
        self.set_terminator ('\r\n\r\n')
        self.rfile = cStringIO.StringIO()
        self.found_terminator = self.handle_request_line
        self.request_version = "HTTP/1.1"
        # buffer the response and headers to avoid several calls to select()
        self.wfile = cStringIO.StringIO()
 
    def collect_incoming_data(self,data):
        """Collect the data arriving on the connexion"""
        self.rfile.write(data)
 
    def prepare_POST(self):
        """Prepare to read the request body"""
        bytesToRead = int(self.headers.getheader('content-length'))
        # set terminator to length (will read bytesToRead bytes)
        self.set_terminator(bytesToRead)
        self.rfile = cStringIO.StringIO()
        # control will be passed to a new found_terminator
        self.found_terminator = self.handle_post_data
    
    def handle_post_data(self):
        """Called when a POST request body has been read"""
        self.rfile.seek(0)
        self.do_POST()
        self.finish()
            
    def do_GET(self):
        """Begins serving a GET request"""
        # nothing more to do before handle_data()
        self.body = {}
        self.handle_data()
        
    def do_POST(self):
        """Begins serving a POST request. The request data must be readable
on a file-like object called self.rfile"""
        ctype, pdict = cgi.parse_header(self.headers.getheader('content-type'))
        self.body = cgi.FieldStorage(fp=self.rfile,
            headers=self.headers, environ = {'REQUEST_METHOD':'POST'},
            keep_blank_values = 1)
        self.handle_data()
 
    def handle_data(self):
        """Class to override"""
        f = self.send_head()
        if f:
            self.copyfile(f, self.wfile)
 
    def handle_request_line(self):
        """Called when the http request line and headers have been received"""
        # prepare attributes needed in parse_request()
        self.rfile.seek(0)
        self.raw_requestline = self.rfile.readline()
        self.parse_request()
 
        if self.command in ['GET','HEAD']:
            # if method is GET or HEAD, call do_GET or do_HEAD and finish
            method = "do_"+self.command
            if hasattr(self,method):
                getattr(self,method)()
                self.finish()
        elif self.command=="POST":
            # if method is POST, call prepare_POST, don't finish yet
            self.prepare_POST()
        else:
            self.send_error(501, "Unsupported method (%s)" %self.command)
 
    def end_headers(self):
        """Send the blank line ending the MIME headers, send the buffered
response and headers on the connection, then set self.wfile to
this connection
This is faster than sending the response line and each header
separately because of the calls to select() in socketStream"""
        if self.request_version != 'HTTP/0.9':
            self.wfile.write("\r\n")
        self.start_resp = cStringIO.StringIO(self.wfile.getvalue())
        self.wfile = socketStream(self.connection)
        self.copyfile(self.start_resp, self.wfile)
 
    def handle_error(self):
        traceback.print_exc(sys.stderr)
        self.close()
 
    def copyfile(self, source, outputfile):
        """Copy all data between two file objects
Set a big buffer size"""
        shutil.copyfileobj(source, outputfile, length = 128*1024)
 
    def finish(self):
        """Send data, then close"""
        try:
            self.wfile.finish()
        except AttributeError:
            # if end_headers() wasn't called, wfile is a StringIO
            # this happens for error 404 in self.send_head() for instance
            self.wfile.seek(0)
            self.copyfile(self.wfile, socketStream(self.connection))
        self.close()

class Server

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class Server(asyncore.dispatcher):
    """Copied from http_server in medusa"""
    def __init__ (self, ip, port,handler):
        self.ip = ip
        self.port = port
        self.handler = handler
        asyncore.dispatcher.__init__ (self)
        self.create_socket (socket.AF_INET, socket.SOCK_STREAM)
 
        self.set_reuse_addr()
        self.bind ((ip, port))
 
        # lower this to 5 if your OS complains
        self.listen (1024)
 
    def handle_accept (self):
        try:
            conn, addr = self.accept()
        except socket.error:
            self.log_info ('warning: server accept() threw an exception', 'warning')
            return
        except TypeError:
            self.log_info ('warning: server accept() threw EWOULDBLOCK', 'warning')
            return
        # creates an instance of the handler class to handle the request/response
        # on the incoming connexion
        self.handler(conn,addr,self)
 
# ------------------------------------------------------------------------------
# our request handler
# ------------------------------------------------------------------------------

class HookHandler

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class ...

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Notes

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Loose ...